We earn commissions from purchases you make using links in our articles. Learn more. You don't have to pay a mechanic to change your spark plugs. Giving your engine fresh spark plugs should be part of ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Swapping out spark plugs is, next to changing your oil, one of the most basic, straightforward bits ...

Spark plugs are a vital part of a gasoline-powered car’s engine. Without them the engine won’t start, and if they’re in rough shape the engine will run poorly. Nearly all gasoline-powered cars are ...

How often you replace spark plugs depends on the type of plugs you have. You may have 30,000-mile plugs, or if the plugs have platinum tips, they may be good for up to 100,000 miles, although some ...